• Champaign County Historical Society

  809 E Lawn Ave Urbana, OH 43078-1256 Contact (937) 653-6721 champaigncohistory@gmail.com http://champaigncountyhistoricalmuseum.org Contact Person: Charles Virts

• Cincinnati Observatory Center

  3489 Observatory Pl Cincinnati, OH 45208-2563 Contact (513) 321-5186 http://www.cincinnatiobservatory.org Contact Person: Craig Niemi craig@cincinnatiobservatory.org

• Clark County Historical Society

  117 S Fountain Ave Ste 1 Springfield, OH 45502-1274 Contact (937) 324-0657 clarkcountyhistory@gmail.com http://www.heritagecenter.us Contact Person: Natalie Fritz

• Clermont County Historical Society

  PO Box 14 Batavia, OH 45103-0014 Contact (513) 753-8672 clermonths@aol.com http://clermont-county-history.org/ Contact Person: Ronald Hill

• Cleveland Heights Historical Society

  PO Box 18337 Cleveland Heights, OH 44118-0337 Contact (216) 321-9141 heightshistory@gmail.com http://www.chhistory.org Facebook Contact Person:

• Cleveland Police Historical Society and Museum

  1300 Ontario St Cleveland, OH 44113-1600 Contact (216) 623-5056 office@clevelandpolicemuseum.org Facebook Contact Person:

• Clinton County History Center

  PO Box 529 Wilmington, OH 45177-0529 Contact (937) 382-4684 tech@clintoncountyhistory.org http://www.clintoncountyhistory.org Contact Person: Shelby Boatman shelby@clintoncountyhistory.org

• Clyde Heritage League Inc

  PO Box 97 Clyde, OH 43410-0097 Contact (419) 547-7946 curator@clydemuseum.org Contact Person: Gene Smith

• Columbus Historical Society

  717 W Town St Columbus, OH 43222 Contact (614) 224-0822 info@columbushistory.org Contact Person: Aimee Briley abriley@columbushistory.org

• Columbus Jewish Historical Society

  1175 College Ave Columbus, OH 43209-2827 Contact (614) 238-6977 history@tcjf.org http://www.columbusjewishhistory.org Facebook Contact Person: Toby Brief

• Cortland Bazetta Historical Society

  PO Box 411 Cortland, OH 44410-0411 Contact (330) 638-6554 INFO@cortlandohiohistory.org https://www.cortlandohiohistory.org/ Contact Person: Sally Lane

• Cridersville Historical Society

  PO Box 2444 Cridersville, OH 45806-0444 Contact (419) 645-5955 Facebook Contact Person: Gregory Myers gmyers@bright.net

• Crosby Township Historical Society

  8910 Willey Rd Harrison, OH 45030 Contact (513) 738-1440 http://www.crosbytwp.org/historical-society.html Contact Person: Chuck Heis chuckheis@yahoo.com

• Cuyahoga County Soldiers’ and Sailors’ Monument

  401 Euclid Ave Ste 46 Cleveland, OH 44114 Contact (216) 486-1298 Facebook Twitter Contact Person: Greg Palumbo gpalumbo@cuyahogacounty.us

• Cuyahoga Falls Historical Society

  2083 Cook St Cuyahoga Falls, OH 44221-3345 Contact (234) 817-0132 CFHS.museum@gmail.com Facebook Contact Person: Shawn Andrews

• Darke County Historical Society

  c/o Garst Museum 205 N Broadway St Greenville, OH 45331-2222 Contact (937) 548-5250 information@garstmuseum.org http://www.garstmuseum.org Facebook Twitter Contact Person: Clay Johnson clay.johnson@garstmuseum.org

• Dayton Police History Foundation, Inc.

  PO Box 293157 Dayton, OH 45429-9157 Contact (937) 266-1779 dphfoundation@woh.rr.com Contact Person: Stephen Grismer

• Decorative Arts Center of Ohio

  145 E Main St Lancaster, OH 43130-3713 Contact (740) 681-1423 http://www.decartsohio.org Contact Person: Christine Kennedy kennedy@decartsohio.org

• Defiance County Historical Society

  PO Box 801 Defiance, OH 43512-0801 Contact (419) 990-0107 villageauglaize@gmail.com http://www.auglaizevillage.com Contact Person: Tricia Speiser

• Delaware County Historical Society

  2690 Stratford Rd Delaware, OH 43015-2948 Contact (740) 369-3831 info@delawareohiohistory.org http://www.delawareohiohistory.org Contact Person: Donna Meyer director@delawareohiohistory.org

• Delhi Historical Society

  468 Anderson Ferry Rd Cincinnati, OH 45238-5281 Contact (513) 451-4313 info@delhihistoricalsociety.org http://www.delhihistoricalsociety.org/ Twitter Contact Person: Alan March

• Dover Historical Society

  325 E Iron Ave Dover, OH 44622-2105 Contact (800) 815-2794 director@reevesmuseum.org http://www.doverhistory.org Contact Person: Shelagh Pruni

• Dublin Historical Society

  PO Box 2 Dublin, OH 43017-0002 Contact (614) 889-8432 info@dublinohiohistory.org http://www.dublinohiohistoricalsociety.org/ Contact Person: Michael Jewell

• Ellsworth Historical Society

  PO Box 106 Ellsworth, OH 44416-0106 Contact (330) 727-2611 ellsworthhistory@gmail.com http://ellsworthhistoricalsociety.org Contact Person: Paul Hendricks

• Enon Community Historical Society

  PO Box 442 Enon, OH 45323-0442 Contact (937) 864-7080 enonhistory@gmail.com http://www.enonhistory.com/ Contact Person: James Kinnamon